Supramolecular effects in self-assembled monolayers: general discussion.
Supramolecular effects in self-assembled monolayers: general discussion.
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自组装单层中的超分子效应：一般讨论。
DOI：
10.1039/c7fd90073b
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发表时间：
2017
影响因子：
3.4
通讯作者：
Amabilino D
中科院分区：
文献类型：
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作者：
Amabilino D
Steven L. Tait在Rasmita Raval的介绍性演讲中开始了讨论：你在演讲中将多态性与细胞中并行发生的许多化学功能进行了类比。在分子自组装的研究中，人们往往倾向于寻找一种可能具有独特的单一化学功能的单一低能结构。我们是否需要重新考虑这种心态，以便利用多态系统的潜在贝内，这些系统可能被开发为多功能系统？对于设计和表征具有多功能性的多晶型分子系统，您有什么建议？Rasmita Raval回答说：多态性被完全忽略，因为大多数研究人员继续专注于解决一个确定的阶段。我强烈地感觉到，多态性是复杂分子在表面显示的一个奇妙属性。每个相将具有其独特的化学和几何结构，具有不同的功能。因此，人们现在有可能从单分子-单表面系统中产生许多功能，简单地通过改变条件如覆盖度、温度、pH等，这导致不同的化学上优选的组装，或通过亚稳态的动力学捕获。自然系统使用这些属性来创建高度响应的系统，或者打开和关闭某些功能。我们应该准备好在阶段空间中“漫游”，绘制所创建的阶段，最重要的是，探索每个阶段可以提供的功能。这些信息是利用多态性来创建智能表面系统的基础，该智能表面系统利用系统的灵活性并通过设计显示不同的功能。可以想象，这种方法可以通过创建本地环境来扩展，
Steven L. Tait opened the discussion of the introductory lecture by Rasmita Raval: You made an analogy in your presentation between polymorphism and the many chemical functions that happen in parallel in a cell. In studies of molecular self-assemblies, there is o en a tendency to look for a single low energy structure that could potentially have a distinct, single chemical function. Do we need to reconsider this mindset in order to take advantage of potential bene ts of polymorphic systems that could potentially be developed as multi-functional systems? What suggestions do you have for designing and characterizing polymorphic molecular systems that have useful multi-functionality?Rasmita Raval replied: Polymorphism is o en ignored entirely, as most researchers continue to concentrate on solving a de ned phase. I feel strongly that polymorphism is a fantastic attribute that complex molecules display at surfaces. Each phase will have its unique chemical and geometric structure, with a distinct functionality. Therefore, one now has the possibility to create many functions from a single molecule-single surface system, simply by changing conditions such as coverage, temperature, pH, etc. which lead to different thermodynamically preferred assemblies, or via kinetic capture of metastable states. Natural systems use such attributes to create highly responsive systems, or to switch certain functions on and off. We should be prepared to ‘roam’across the phase-space, map the phases that are created and, most importantly, explore the functions that each phase could deliver. Such information is the basis for exploiting polymorphism to create smart surface systems that harness the exibility of the system and display different functions by design. One can imagine that such approaches can then be extended by creating local environments which